Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

5 hosts · 341 ms

HostCertsFirst seenLast seenDNS
scentifyhome.com 13 2026-05-19 2026-09-30 ok
go.scentifyhome.com 10 2026-04-07 2026-10-01 ok
returns.scentifyhome.com 2 2025-08-01 2026-06-12 ok
account.scentifyhome.com 18 2026-04-11 2026-09-25 ok
www.scentifyhome.com 16 2026-05-19 2026-09-28 ok

Programmatic access, with DNS A records: API GET /v1/hosts/scentifyhome.com (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/scentifyhome.com.